LF 401


LF 401 is a spraying film which used for waterproofing to concrete structures. It is mainly used for spraying construction between shotcrete or cast-in-place concrete to make a "sandwich". It has good bond strength and elasticity between the two concrete. As a bonding entity, it provides excellent waterproofing properties for underground structures to prevent water ingress. LF 401 will get hardened within 4 to 6 hours (depending on environmental conditions) after spraying off, providing sufficient time for concrete lining and effectively ensuring construction progress. Similar to other shotcrete products, it can not prevent water penetration through the concrete. For such cases, it will be better to start spraying after water drainage. (Please refer to the LF 401 technical description. However, the LF 401 can be used in humid working (Non flowing water) surfaces. LF401 is also suitable for steel fiber shotcrete structures.)
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